Home / 13,136.30-19,684.98-10,812.80

Finding the Fourth Proportional to 13,136.30, 19,684.98 and 10,812.80

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Solution

The fourth proportional to 13,136.30, 19,684.98 and 10,812.80 is: 16,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.30 : 19,684.98 = 10,812.80 : x
  2. Step 2: Convert to fraction form
    13,136.30/19,684.98 = 10,812.80/x
  3. Step 3: Cross multiply
    13,136.30x = 19,684.98 × 10,812.80
  4. Step 4: Simplify right side
    13,136.30x = 212,849,751.74
  5. Step 5: Solve for x
    x = 212,849,751.74/13,136.30
  6. Step 6: Final answer
    x = 16,203.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.